// 设置常见屏幕大小
html{
    font-size: 50px;
}
// 划分分数为十五
@no:15;
@media screen and (min-width:320px){
    html{
        font-size: 320px / @no;
    }
}
@media screen and (min-width:360px){
    html{
        font-size: 360px / @no;
    }
}
@media screen and (min-width:375px){
    html{
        font-size: 375px / @no;
    }
}
@media screen and (min-width:384px){
    html{
        font-size: 384px / @no;
    }
}
@media screen and (min-width:400px){
    html{
        font-size: 400px / @no;
    }
}
@media screen and (min-width:424px){
    html{
        font-size: 424px / @no;
    }
}
@media screen and (min-width:480px){
    html{
        font-size: 480px / @no;
    }
}
@media screen and (min-width:540px){
    html{
        font-size: 540px / @no;
    }
}
@media screen and (min-width:720px){
    html{
        font-size: 720px / @no;
    }
}
@media screen and (min-width:750px){
    html{
        font-size: 750px / @no;
    }
}